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Which one of the following metal complexes is most stable?

Option 1 -

[Co(en)₂(NH₃)₂]Cl₂

Option 2 -

[Co(NH₃)₆]Cl₂

Option 3 -

[Co(en)₃]Cl₂

Option 4 -

[Co(en)(NH₃)₄]Cl₂

0 2 Views | Posted a month ago
Asked by Shiksha User

  • 1 Answer

  • A

    Answered by

    alok kumar singh | Contributor-Level 10

    a month ago
    Correct Option - 1


    Detailed Solution:

    Chelation increases stability of complex. Also more the chelation more the stability. Here, [Co (en)? (NH? )? ]Cl? , [Co (en)? ]Cl? and [Co (en) (NH? )? ]Cl? have chelation due to ethylenediamine. Therefore [Co (en)? ]Cl? has the highest chelation so the highest stability.

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